Home / 6,869.46-9,479.49-3,885.83

Finding the Fourth Proportional to 6,869.46, 9,479.49 and 3,885.83

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Solution

The fourth proportional to 6,869.46, 9,479.49 and 3,885.83 is: 5,362.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.46 : 9,479.49 = 3,885.83 : x
  2. Step 2: Convert to fraction form
    6,869.46/9,479.49 = 3,885.83/x
  3. Step 3: Cross multiply
    6,869.46x = 9,479.49 × 3,885.83
  4. Step 4: Simplify right side
    6,869.46x = 36,835,686.63
  5. Step 5: Solve for x
    x = 36,835,686.63/6,869.46
  6. Step 6: Final answer
    x = 5,362.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.